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03-16-2009, 05:15 PM
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#1
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Administrator
Join Date: Dec 1997
Location: Detroit area, USA
Posts: 14,049
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L99 guys...Comp Cams Cam Phase Limiter Kit!
Hey check this one out!
I switched my order from the M6 to the A6 because I wanted to play with the shifting, etc. My only problem was the VVT in the L99 not allowing cam swaps, etc.
I got a Press Release today regarding Comp Cams Phase limiter kits...
Quote:
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The 2007 & newer GM L92 engines utilize Variable Valve Timing (VVT) controlled via cam phasers. Cam phasers are computer controlled cam gears that automatically optimize camshaft timing based on the current engine rpm. While this technology provides tremendous efficiency benefits, it presents a challenge when designing performance cams due to the wide range of valve timing movement and constantly changing piston to valve clearance. As a result the COMP Cams® engineers have developed a Cam Phaser Limiter Kit that restricts the range of cam timing movement from 50° to 20°. This modification provides the necessary valve clearance for serious performance camshafts with tighter lobe separations – while still utilizing the benefits of the VVT technology. The resulting upper-rpm gains are some of the largest we’ve ever seen from a camshaft swap without sacrificing any bottom-end or mid-range performance.
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Does that ever sound tasty! According to their web site, it is $220.45 retail
http://www.compperformancegroupstore...Category_Code=
I know this is for L62, but surely it will work on L99 or they will develop a version for it. They would be stupid not to, IMO. Attached is a PDF I made with more info, including cam selection.
I think this might be a mod in my future if it works for L99!
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03-17-2009, 02:53 AM
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#3
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Registered User
Join Date: Oct 2000
Location: Kilgore TX 75662
Posts: 3,086
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Jason, how about 500hp with virtually no loss in low end from the L99?
http://www.gmhightechperformance.com...all/index.html
The baseline was with an L92 with headers and the truck intake. I'm wondering how the L99 intake will compare? Does it really matter now that FAST has a 102mm intake and TB available?
__________________
ChestonPhillips@yahoo.com
Quote:
Originally Posted by Bob Cosby
Now we're speculating on the speculation....all the while, throwing more speculation into the mix. Is one speculation (or "most realistic guess") any better than the other speculation?
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03-17-2009, 08:55 AM
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#4
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Registered User
Join Date: Jan 2006
Posts: 260
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Quote:
Originally Posted by AdioSS
Jason, how about 500hp with virtually no loss in low end from the L99?
http://www.gmhightechperformance.com...all/index.html
The baseline was with an L92 with headers and the truck intake. I'm wondering how the L99 intake will compare? Does it really matter now that FAST has a 102mm intake and TB available? |
Wow just wow this is really good news, and I wounder as well how is the L99 intake. But in the end the FAST intake options really make it a moot point
__________________
94 z28 396 CID H/C/I T88 Turbo all for sale 
www.lt1boost.net for RealQuick's hot parts
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03-17-2009, 09:33 AM
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#5
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Super Moderator
Join Date: Jul 2005
Location: Okemos, MI
Posts: 7,543
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Superflow makes both engine dynos and chassis dynos. Which was that?
500bhp from a cam swap... nice, but not that impressive. 500rwhp through an IRS? Now that is what I call impressive! 
__________________
2002 NBM Camaro Z28 M6 - best ET 13.21, best MPH 108.9, best 60' 2.14 - 325hp/343tq - Lid, Corsa, SixSpeedsInc T56, Pro 5.0 w/ short stick, 17x9 wheels
1987 Buick Grand National - best ET 13.66, best MPH 101.5, best 60' 2.08 - 253hp/334tq - 93 chip, RJC, meth, Hooker catback, 160 t-stat, shift kit, no-hop bars
Last edited by JakeRobb; 03-17-2009 at 09:53 AM.
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03-31-2009, 10:56 AM
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#6
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Registered User
Join Date: Mar 2009
Location: SoCal
Posts: 104
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sweet...
__________________
1. 2001 camaro z28,..........2. 2002 bmw 325i
3. 2002 camaro SS,,..........4. 2002 M3
5. ?? 2010 camaro SS or corvette Z06??
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04-30-2009, 04:11 PM
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#7
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Administrator
Join Date: Dec 1997
Location: Detroit area, USA
Posts: 14,049
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I was talking with Comp about this, and the pointed me in the direction of an installation PDF file for this kit that also has more information:
http://www.compcams.com/Technical/In.../COMP4-122.pdf
I cannot wait to find out if this works with the L99!
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06-18-2009, 12:35 AM
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#8
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Registered User
Join Date: Nov 2002
Location: Louisville KY
Posts: 1,264
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Quote:
Originally Posted by JakeRobb
Superflow makes both engine dynos and chassis dynos. Which was that?
500bhp from a cam swap... nice, but not that impressive. 500rwhp through an IRS? Now that is what I call impressive! |
That chart looks like engine dyno based on the stock HP rating of 430hp, which is about right for an L92 engine, not L92 rwhp.
__________________
1995 TA M6 E85
Power mods: CAI, Hooker LT, 1.7RR, Stg 2 Heads, M29 T56, Fidanza FW.
Suspension: Koni SA's 600/175lb GC, 35/21 sways, poly everything, C5 brakes.
Appearance: LS1 tails, CETA mod, Corsa clones, custom 10-spoke SS wheels.
322rwhp, 338rwtq
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06-18-2009, 07:44 AM
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#9
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Super Moderator
Join Date: Jul 2005
Location: Okemos, MI
Posts: 7,543
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Quote:
Originally Posted by kgkern01
That chart looks like engine dyno based on the stock HP rating of 430hp, which is about right for an L92 engine, not L92 rwhp.
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There is at least one place that is getting 500+ rwhp out of a new LS3 Camaro with a cam and bolt-ons.
I see no reason to doubt that it's possible with the L99.
__________________
2002 NBM Camaro Z28 M6 - best ET 13.21, best MPH 108.9, best 60' 2.14 - 325hp/343tq - Lid, Corsa, SixSpeedsInc T56, Pro 5.0 w/ short stick, 17x9 wheels
1987 Buick Grand National - best ET 13.66, best MPH 101.5, best 60' 2.08 - 253hp/334tq - 93 chip, RJC, meth, Hooker catback, 160 t-stat, shift kit, no-hop bars
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06-18-2009, 08:40 AM
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#10
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Registered User
Join Date: Nov 2002
Location: Louisville KY
Posts: 1,264
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I didn't say it wasn't possible for 500 rwhp, just that the above chart appears to show engine hp.
__________________
1995 TA M6 E85
Power mods: CAI, Hooker LT, 1.7RR, Stg 2 Heads, M29 T56, Fidanza FW.
Suspension: Koni SA's 600/175lb GC, 35/21 sways, poly everything, C5 brakes.
Appearance: LS1 tails, CETA mod, Corsa clones, custom 10-spoke SS wheels.
322rwhp, 338rwtq
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06-18-2009, 03:45 PM
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#11
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Super Moderator
Join Date: Jul 2005
Location: Okemos, MI
Posts: 7,543
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Quote:
Originally Posted by kgkern01
I didn't say it wasn't possible for 500 rwhp, just that the above chart appears to show engine hp.
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I was under the impression that you were basing that on the feasibility of 500rwhp.
__________________
2002 NBM Camaro Z28 M6 - best ET 13.21, best MPH 108.9, best 60' 2.14 - 325hp/343tq - Lid, Corsa, SixSpeedsInc T56, Pro 5.0 w/ short stick, 17x9 wheels
1987 Buick Grand National - best ET 13.66, best MPH 101.5, best 60' 2.08 - 253hp/334tq - 93 chip, RJC, meth, Hooker catback, 160 t-stat, shift kit, no-hop bars
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